{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "However , shortly after the use of intravenous calcium chloride , the refractory hypotension and complete heart block resolved ."}
{"Chemical": ["calcium chloride"], "Disease": ["hypotension", "heart block"]}